Analog Devices, Inc.

ADM485ARMZ-REEL7

Integrated Circuits (ICs)
Interface ICs
Drivers, Receivers
Transceiver I.C.
Product description: RS-422/RS-485 Interface IC 5V Low Power RS-485 Transceiver I.C.
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The ADM485 is a differential line transceiver suitable for high speed bidirectional data communication on multipoint bus transmission lines. It is designed for balanced data transmission and complies with EIA standards RS-485 and RS-422. The part contains a differential line driver and a differential line receiver. Both the driver and the receiver can be enabled independently. When disabled, the outputs are three-stated. The ADM485 operates from a single 5 V power supply. Excessive power dissipation caused by bus contention or by output shorting is prevented by a thermal shutdown circuit. If during fault conditions, a significant temperature increase is detected in the internal driver circuitry, this feature forces the driver output into a high impedance state.

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